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Figure 4 | Nanoscale Research Letters

Figure 4

From: The aniline-to-azobenzene oxidation reaction on monolayer graphene or graphene oxide surfaces fabricated by benzoic acid

Figure 4

The several data acquired from HRPES experiments. (a) Work function measurements and (b) a plot of the work function values for each sample (a: monolayer EG, b: GOx surface, c: 3,600 L aniline, d: 10,800 L aniline, e: 14,400 L aniline). (c) Valence band spectra of the five samples. Black curve, monolayer EG; red curve, GOx surface prepared using benzoic acid; green curve, 3,600 L aniline; blue curve, 10,800 L aniline; and purple, 14,400 L aniline. (d) The magnified Fermi edge spectrum, which corresponds to Figure 4c.

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